Writing-machine.



E. B. HESS.

WRITING MACHINE. APPLIUATION FILED AUG. 20, 1907.

' 924,460, Patented June 8, 1909.

2 SHEETS-SHEET l.

ATTORNEY Patented June 8,1909;

ATTORNEY WRITING MACHINE.

APPLIOATION r rLnn AUG. 20. 1907.

I [Ex wd Wm WITNESSES: 1 {3W awk/ml UNlTED STATES EDWARD B. HESS, OF NEW YORK, N. Y., .ASSIGNORTO ROYAL TYPEWRITER COMPANY, OF

PATENT OFFICE.

HOBOKEN, NEW JERSEY, A CORPORATION NEW JERSEY.

' :WBITING-MACHI'NE.

ism-924,460.-

.To all whom it may concern:

Be'it known-that I, EDWARD B. Hess, a citizen of the United; States of America; residingin the-borough of Brooklyn, city and Stateof New York, have'jinven'ted certain Improvements in Writing-Machines, of

which the-following is a specification.

.fiThis invention relates topaperfeed de-' -vices primarily dapted to visible from S rike machines r 1 t It comprises feed '0} ressurerolls independently spring presse toward the platen and yet combined with paper 'guidedevices suchsas a pan which with the pressure roll devices is capable of being moved" bodily= away'from the platen. The organization is such that; the feed devices, comprising an independently' spring pressed rearfeed 1:011, and preferably, also an independently spring-pressed frontjfeed roll and interposedpaper guiding means, such as a sheetmetal pan, .are capable of. movement bodily toward and from the platen. This arrangement insures uniform contact between the pressure rolls and, the platen, and is.- ar:--

ticularly adapted to manifold workw ere a plurality of sheets is'employed.

The invention constitutes an improvement upon the paper feed devices. disclosed in my United States Letters Patent'No. 8.61978, dated July 30', 1907...

In the accompanying drawings, Figure 1 is a partial end elevation partly in section: Fi 2', a similar view showing the parts in di erent' position: Fig. 3, a bottom plan view: Fig. 4, apartial end elevation partlyin section showing a modified construction: Fig. 5, a similar view showing still another modification: and Fig. 6, a similar --v1ew showing the construction depicted in Fi 1,

' in'idwaybelow the platen, there are pairs of arms a, cprojecting from the. shaft 6 in opposite directions and rocking thereon. The

arms ofeach-end 'aii'l are normally drawn upwardly by coile' springs c',.c attached Specification of Iletters Patent. .Appl ication filed August 20, 1907. sem No. 389,356.

Patented-Tune 8, 1909.

:to projecting pins 0 c on the arms and connected at their upper ends to adjustable eye. bolts {passing through fixed plates or parts cfof the carriage frame and having applied to their threaded ends adjusting nuts 0 0*. .The receiving or rear feed or pressure roll d, shown as composed of two section s, has its shaft niouiited in the rearwa'rdly projecting arms 0 of each pair and the front or delivery feed or pressure roll 6, shown ascomposed of four sections has its shaft niounted in the forwardly projecting arms 0 of each pair. Reaction of springs c serves'to draw. the rolls into contact with the platen. There 'is also a paper guiding "device shown in the form of a sheet metal pair-in recesses 'inthe front edge of which the sections of the front feed roll workand there are apertures in the rear portion through which the rear or receiving feed roll works. "The, part f of the pan occupies the space'between the pressure rolls and the part f extends ieai'wardly and upwardly for the r'eceptionof the paper to be guided into the machine. From the under side of the central portion ofthe pan near each end and at the niiddl'e'are downward projections or lugs g apertui'ed' to receive the transverse shaft b that constitutes a carrying frame. On each of the arms 0, 0 of the pairs located at the extreme sides or ends of the carriage there are laterally projecting pins 71. that project over the edges of the part f of the paii, thus more or less positively uniting the arms that carry the rolls and the pans. At each side of the carriage there'is alever arm 2' pivoted-at i on the carriage in rear of the platen and extending forward under it. These arms have downwardly extended forked portion i that straddles the rod 6 and, on each side are-so formed as to afford seats for lateral pins c c projecting from the sides of the arms 0,0. From this it will beseen that the reagtion of spring 0 draws the front and rear rolls into contact with thesurface of the platen and supports the shaft 6 and with it the paper guiding device or pan. When. it is desired to depress the feed devices to permit free manipulation of the paper sheets. someappropriate means of "depressing the rolls'is re uired. This may be conveniently accomplished as follows. In rear of the .platen is a transverse rock shaft j rocking in the side plates of the carriage and having projecting from t at each side opposite each lever arm a acam projec tion j and from one of these projections, preferably at the right hand end of the carriage, there extends upwardly a lever arm j 5 which when operated rocks the shaft j and the cam projections j press the lever arms 71 downward. The fork projections i of those arms carry downward the shaft Z), and with it the arms a, by reason of engagement of the arms with the pin 0 The pan is positively carried down because its projections g brace the-shaft b but also because the pins h .on the arms 0 overhang its edges. These latter pins, however, serve'primarily to limit rocking of the pan on the supporting shaft or frame. The cam projections jare formed with squared ends so that when the lever arm 7' is moved into the position shown in Fig. 2, the feed rolls will remain depressed w or out of operative relation to the platen. When the feed devices are depressed as seen in Fig. 2 the entire structure moves bodily away from'the platen.

Fig. (ishows an arrangement such as has.

been described with the addition that there is mounted concentrically with the platen a gear is engaged by a pinion 7; on the shaft of the rear feed roll cl. The proportion and relation of the gears is such that the roll is driven at the same surface speed as that of the platen; and the depth of the teeth is to be such that when the feed devices are bodily depressed the gears will not pass out of .engagement.

In the construction shown in Fig. at there is a transverse bar we shown as substantially rectangular in cross section. It is to be fixed to the end plates of the carriage. Mounted to straddle it are two or more forked downward projections n from .the paper pan to the sides of which are secured by screws or otherwise spring arms n in which are mounted the shafts-of the front and rear feed rolls. The same general arrangement of lever arm j, rock shaft j and cam projections j is retained except that in this in stance the lever arms corresponding with i, and marked i in Fig. 4, are shown as horizontally disposed and engage lateral projections or lugs n onthe sides of the downward projections n. To a rearward projection 11. .from' these downwardly extended bifurcated projections 01., at each'end of the platen, there is attached the lower end of a.v coiled spring 0 whose upper end is attached to an adjustable screw eye bolt 0 passing through a fixed part 0 of the frame and having appliedto its threaded end an adjusting nut 0 One such spring at each side or end is deemed sufiicient.

In Fig. 5, the pan is supported by downwardly extending projections p therefrom, through apertures in which extendsa deembraced by lever ar'ins z' corresponding in pressible transverse shaft p" which is also operation with lever arm 2' and located as are those other arms at the ends of the carriage. In this instance, the front and rear feed'rolls cl and c are carriedupon shafts mounted in swinging arms 9 pivoted in brackets secured to or integral with the pan f-and projecting from the bottom side thereof. Springs g attached to or forming part of the brackets bear upon the arms 9 and by their tension tend to force the feed rolls into engagement with the platen. Each swinging arm by preference has a lateral projection or pin 1 that overlies the edge of the pan and more or less positively connects the arms and pan. Springs i" one at each end of the carriage are applied to the leverarms i and by their reaction tend to carry the whole feed structure into operative relation to the platen.

A paper feed organization having the behavior described is new, so far as I am aware.

I claim-r 1. Paper feed devices for a visible writing machine comprising a platen, a spring supported frame movable toward and from the platen, and front and rear feed rolls spring pressed against the platen and mounted to move independently on their supporting frame.

2. Paper feeddevices for a. visible writing niachine comprising a platen. a spring supported frame movable bodily in a straight line-toward and from the platen, front and rear feed rolls spring pressed against the platen and mounted on said frame to move independently thereof.

3. Paper fccd devices for front strikd writing machine comprising a platen, a vertically movable spring supported frame located below the platen, spring supported arms pivoted thereon and front and rear feed rolls carried by such arms and sprung pressed into engagement with the platen.

4. Paper feed devices for a visible vr w ing machine comprising a platen, a s; :1 supported frame movable toward and fr m the platen, front and rear feed rolls spru pressed against the platen and. mounted to move independently on their, sup mriing frames and a paper guide pan arranged between the' feed rolls.

5. Paper feed devices for a visible writing machine comprising a platen, a spring supported frame movable bodily in a straight line toward and from the platen, front and rear feed rolls spring pressed against the platen and mounted on said frame to move independently thereof and a paper guide pan arranged between the feed rolls.

6. Paper feed devices for front strike writing machine comprising a platen, a vertically movable spring supported frame located' below the platen, spring supported arms pivoted thereon, front and rear feed too lfll) rolls carried by such arms and spring aten,

guide pan arranged between front and rear feed rolls carried by theframe and mounted to move independently thereon and a paper guide pan located between the-feedmolls, pivoted on the frame and capable of limited rocking movement.

' 8. Paper feed devices for a visible writing machine comprising a platen, aspring supported frame movable toward andfrom the platen, front and rear feed rolls spring pressed against the'platen and mounted to move independently on their supporting frame and means for moving and locking the feed devices out of operative relation to the platen.

9. Paper feed devices for a visible writing machine comprising a platen, a spring supported frame movable bodily toward and from the platen, front and rear feed rolls spring pressed against the platen and mount-- ed on said frame to move independently f the platen.

thereof and means for moving and locking the fGBdIlGVlCQS out of operative relat1on to 10. Paper feed devices for a visible writing machine comprising a platen, a spring, supported frame movableina straight line toward and fromthe platen, front and rear feed rolls spring pressed against the platen and mounted on said frame to move independently thereof and means for moving and locking the feed devices out of operative relation to the platen. I

ll.- Paper feed devices for a front strike writing machine comprising a platen, a spring supported frame mounted below the platen and adapted to move up and. down and spring pressed front and rear feed rolls carried by the framecapable of independent movement thereon and means for moving and locking the feed devices out of operative relation to the platen.

12. Paper feeddevices for front strike Writing .machines comprising a floating spring-supported frame located below the platen and capable of movement up and down, arms pivoted on the frame, front and rear feed rolls carried by the arms and springs applied to the arms and serving to maintain the feed devices in normal relation to theplaten. 18. Paper feed devices for front strike writing machmes comprising a floatmg spring supported frame, located below the platen and capable of movement up and down, arms pivoted on the frame, front and rear feed rolls carried by the arms and springs applied to'the arms and serving to maintain the feed devices in normal relation to the platen and a paperfguide' pan also pivoted upon the frame andcapable of limited rocking movement, lateral projections on the roll carrying arms serving to limit and interlockingly connect the pan and said arms.

14. Paper feed devices for.- front strike writing machine comprising .a floating spring supported frame located below the platen-and capable of movement up and" down, arms pivoted on the frame, front and rear feed rolls carried by the arms and spring applied to the arms and serving to maintain the feed devices in normal relation to the platen, and means for moving and locking the paper feed devices out of operative relation to the platen.

15. Paper feed devices for front strikewriting machines comprising a floating spring supported frame-located below the platen and capable of movement up and down, arms pivoted on the frame, front and rear feed rolls carried by the arms and springs applied to the arms and serving to mamtaln the feed devices in normal relation to the platen, a paper guide pan also pivoted upon the frame and capable of limited rocking movement, lateral projections on the roll EDWARD snnss.

Witnesses: I l

S. AaHAs'rm, L. F. BROWNING. 

